APT1 - Observations of Astrophysical Black Holes |
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Speaker |
Titarchuk, Lev |
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Co-autors |
Nikolai Shaposhnikov |
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Talk Title |
Determination of Black Hole Masses in Galactic Black Hole Binaries using Scaling of Spectral and Variability Characteristics |
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Abstract |
We present a study of correlations between X-ray spectral and timing properties observed from a number of Galactic Black Hole (BH) binaries during hard-soft state spectral evolution. We analyze 17 transition episodes from 8 BH sources observed with RXTE. Our scaling technique for BH mass determination uses a correlation between spectral index and quasi-periodic oscillation (QPO) frequency. In addition, we use a correlation between index and the normalization of the disk ``seed'' component to cross-check the BH mass determination and estimate the distance to the source. |
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